Home / 2,132,663.76-3,198,995.64-712,719.86

Finding the Fourth Proportional to 2,132,663.76, 3,198,995.64 and 712,719.86

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Solution

The fourth proportional to 2,132,663.76, 3,198,995.64 and 712,719.86 is: 1,069,079.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,132,663.76 : 3,198,995.64 = 712,719.86 : x
  2. Step 2: Convert to fraction form
    2,132,663.76/3,198,995.64 = 712,719.86/x
  3. Step 3: Cross multiply
    2,132,663.76x = 3,198,995.64 × 712,719.86
  4. Step 4: Simplify right side
    2,132,663.76x = 2,279,987,708,686.43
  5. Step 5: Solve for x
    x = 2,279,987,708,686.43/2,132,663.76
  6. Step 6: Final answer
    x = 1,069,079.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.